3Com MSR 50, MSR 30 Stp loop-protection, Stp max-hops, Syntax stp max-hops hops Undo stp max-hops

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■Normally, configuration BPDUs from other devices cannot reach an edge port because it does not connect to any other device. Before the BPDU guard function is enabled, if a port receives a configuration BPDU, the port is working actually as a non-edge port even if you have configured in as an edge port.

Examples # Configure port Ethernet 1/1 as a non-edge port.

<Sysname> system-view

[Sysname] interface ethernet 1/1

[Sysname-Ethernet1/1] stp edged-port disable

stp loop-protection

Syntax stp loop-protection

undo stp loop-protection

View Ethernet interface view, port group view

Parameters None

Description Use the stp loop-protectioncommand to enable the loop guard function for a port or a group of ports.

Use the undo stp loop-protectioncommand to restore default loop guard setting for a port of a group of ports.

By default, the loop guard function is disabled.

Note that, configured in Ethernet interface view, the setting is effective on the current port only; configured in port group view, the setting is effective on all the ports in the port group.

Examples # Enable the loop guard function for port Ethernet 1/1.

<Sysname> system-view

[Sysname] interface ethernet 1/1

[Sysname-Ethernet1/1] stp loop-protection

stp max-hops

Syntax stp max-hops hops

undo stp max-hops

View System view

Parameters hops: Maximum hops, in the range of 1 to 40